1320674259599 has 4 divisors (see below), whose sum is σ = 1332790537320. Its totient is φ = 1308557981880.

The previous prime is 1320674259581. The next prime is 1320674259607. The reversal of 1320674259599 is 9959524760231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320674259599 - 2⁸ = 1320674259343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320670259599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6058138697 + ... + 6058138914.

It is an arithmetic number, because the mean of its divisors is an integer number (333197634330).

Almost surely, 2^{1320674259599} is an apocalyptic number.

1320674259599 is a deficient number, since it is larger than the sum of its proper divisors (12116277721).

1320674259599 is a wasteful number, since it uses less digits than its factorization.

1320674259599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12116277720.

The product of its (nonzero) digits is 36741600, while the sum is 62.

The spelling of 1320674259599 in words is "one trillion, three hundred twenty billion, six hundred seventy-four million, two hundred fifty-nine thousand, five hundred ninety-nine".